Troubleshooting
6-39
Part 1120277_01
E 2012 Nordson Corporation
No faults >
Ready LED is illuminated >
Nohotmeltoutputfromallguns>
Motor is not turning >
All motor start conditions are correct >
Reservoir setpoint temperature is correct
T.4.1
?
+
--
Is the harness between X4
on the relay board and X6
on the motor/piston control
board connected?
+
--
Is the harness between X3
on the main board and X7
on the relay board
connected?
Replace the drive
assembly.
+
--
Does swapping the main
board, relay board,
motor/piston control board, or
motor drive with a k nown
good replacement correct the
problem?
Connect the harness.
Stop.
Contact Nordson for
technical assistance.
+
--
Is indicator DS7 on the
main board illuminated?
Replace fuses F11 and
F12.
?
+
--
Is the harness between X5
on the motor/piston control
board and the motor drive
connected?
?
+
--
Is the pump operating
correctly?
Replace the pump.
?
+
--
Is the motor excessively
hot?
+
--
Is the electrical harness
that exits the motor
junction box connected to
the motor drive?
?
+
--
Allow the motor to cool and
then automatically start
once its internal thermostat
resets. Does this correct
the problem?
Stop.
Connect the harness.
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